diff --git a/backend/internal/service/user_group_service.go b/backend/internal/service/user_group_service.go
index 9b68af7..fa146ee 100644
--- a/backend/internal/service/user_group_service.go
+++ b/backend/internal/service/user_group_service.go
@@ -89,7 +89,6 @@ func (s *UserGroupService) Update(id string, input dto.UserGroupCreateDto, allow
 
 	group.Name = input.Name
 	group.FriendlyName = input.FriendlyName
-	group.LdapID = &input.LdapID
 
 	if err := s.db.Preload("Users").Save(&group).Error; err != nil {
 		if errors.Is(err, gorm.ErrDuplicatedKey) {
diff --git a/backend/resources/migrations/postgres/20250120102531_fix_empy_ldap_id_string.down.sql b/backend/resources/migrations/postgres/20250120102531_fix_empty_ldap_id_string.down.sql
similarity index 100%
rename from backend/resources/migrations/postgres/20250120102531_fix_empy_ldap_id_string.down.sql
rename to backend/resources/migrations/postgres/20250120102531_fix_empty_ldap_id_string.down.sql
diff --git a/backend/resources/migrations/postgres/20250120102531_fix_empy_ldap_id_string.up.sql b/backend/resources/migrations/postgres/20250120102531_fix_empty_ldap_id_string.up.sql
similarity index 100%
rename from backend/resources/migrations/postgres/20250120102531_fix_empy_ldap_id_string.up.sql
rename to backend/resources/migrations/postgres/20250120102531_fix_empty_ldap_id_string.up.sql
diff --git a/backend/resources/migrations/postgres/20250203082527_fix_empty_user_group_ldap_id_string.down.sql b/backend/resources/migrations/postgres/20250203082527_fix_empty_user_group_ldap_id_string.down.sql
new file mode 100644
index 0000000..14da374
--- /dev/null
+++ b/backend/resources/migrations/postgres/20250203082527_fix_empty_user_group_ldap_id_string.down.sql
@@ -0,0 +1 @@
+UPDATE user_groups SET ldap_id = '' WHERE ldap_id IS NULL;
\ No newline at end of file
diff --git a/backend/resources/migrations/postgres/20250203082527_fix_empty_user_group_ldap_id_string.up.sql b/backend/resources/migrations/postgres/20250203082527_fix_empty_user_group_ldap_id_string.up.sql
new file mode 100644
index 0000000..87ee3e0
--- /dev/null
+++ b/backend/resources/migrations/postgres/20250203082527_fix_empty_user_group_ldap_id_string.up.sql
@@ -0,0 +1 @@
+UPDATE user_groups SET ldap_id = null WHERE ldap_id = '';
\ No newline at end of file
diff --git a/backend/resources/migrations/sqlite/20250120102531_fix_empy_ldap_id_string.down.sql b/backend/resources/migrations/sqlite/20250120102531_fix_empty_ldap_id_string.down.sql
similarity index 100%
rename from backend/resources/migrations/sqlite/20250120102531_fix_empy_ldap_id_string.down.sql
rename to backend/resources/migrations/sqlite/20250120102531_fix_empty_ldap_id_string.down.sql
diff --git a/backend/resources/migrations/sqlite/20250120102531_fix_empy_ldap_id_string.up.sql b/backend/resources/migrations/sqlite/20250120102531_fix_empty_ldap_id_string.up.sql
similarity index 100%
rename from backend/resources/migrations/sqlite/20250120102531_fix_empy_ldap_id_string.up.sql
rename to backend/resources/migrations/sqlite/20250120102531_fix_empty_ldap_id_string.up.sql
diff --git a/backend/resources/migrations/sqlite/20250203082527_fix_empty_user_group_ldap_id_string.down.sql b/backend/resources/migrations/sqlite/20250203082527_fix_empty_user_group_ldap_id_string.down.sql
new file mode 100644
index 0000000..14da374
--- /dev/null
+++ b/backend/resources/migrations/sqlite/20250203082527_fix_empty_user_group_ldap_id_string.down.sql
@@ -0,0 +1 @@
+UPDATE user_groups SET ldap_id = '' WHERE ldap_id IS NULL;
\ No newline at end of file
diff --git a/backend/resources/migrations/sqlite/20250203082527_fix_empty_user_group_ldap_id_string.up.sql b/backend/resources/migrations/sqlite/20250203082527_fix_empty_user_group_ldap_id_string.up.sql
new file mode 100644
index 0000000..87ee3e0
--- /dev/null
+++ b/backend/resources/migrations/sqlite/20250203082527_fix_empty_user_group_ldap_id_string.up.sql
@@ -0,0 +1 @@
+UPDATE user_groups SET ldap_id = null WHERE ldap_id = '';
\ No newline at end of file